Diameter of Mixing Auger: 12 in. flighting/13 in. tube/24 in. base | Discharge Auger Tube Diameter: 8 in. | Unload Auger Reach 60° Angle: 16 ft. 5 in. (10 ft Tube) | Unload Auger Reach 3 ft. Extension 60° Angle: 19 ft. (10 ft. Tube) | Unload Auger Reach 6 ft. Extension 60° Angle: 21 ft. 6 in. (10 ft. Tube) | Supplement Hopper Size: 21 x 24 in.